Base | Representation |
---|---|
bin | 10111110110111011… |
… | …10010101111101110 |
3 | 1020001200001202210222 |
4 | 23323131302233232 |
5 | 202213024411323 |
6 | 5515001331342 |
7 | 632262136364 |
oct | 137335625756 |
9 | 36050052728 |
10 | 12808825838 |
11 | 5483280486 |
12 | 2595796b52 |
13 | 12918b79b3 |
14 | 897203634 |
15 | 4ee78c9c8 |
hex | 2fb772bee |
12808825838 has 8 divisors (see below), whose sum is σ = 19218446832. Its totient is φ = 6402676896.
The previous prime is 12808825807. The next prime is 12808825859. The reversal of 12808825838 is 83852880821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 12808825838.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858770 + ... + 873557.
It is an arithmetic number, because the mean of its divisors is an integer number (2402305854).
Almost surely, 212808825838 is an apocalyptic number.
12808825838 is a deficient number, since it is larger than the sum of its proper divisors (6409620994).
12808825838 is a wasteful number, since it uses less digits than its factorization.
12808825838 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1736026.
The product of its (nonzero) digits is 1966080, while the sum is 53.
The spelling of 12808825838 in words is "twelve billion, eight hundred eight million, eight hundred twenty-five thousand, eight hundred thirty-eight".
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